Athermal materials represent a class of disordered systems where large scale properties are only weakly affected by ambient thermal fluctuations. Such behaviour emerges in many disordered systems when cooled to low temperatures [1]}. Being governed purely by local constraints of mechanical equilibrium, athermal systems display amorphous disorder that arises from the many possible arrangements of particles in minimum energy configurations. Such amorphous packings are inhomogeneous at the local scale and consequently are not described by the usual elasticity theories in continuum [2]}. Since the thermal motion of the constituent particles is irrelevant, athermal materials are not governed by fluctuation dissipation relations [3]}, and therefore offer interesting arenas to study non-equilibrium behaviour.
Many real-world systems can be classified as athermal, and they arise frequently in physics and biology. Examples include jammed packings of particles [4]}, [5]}, [6]}, [7]}, [8]}, [9]}, [10]}, [11]}, [12]}, [13]}, low temperature glasses  [14]}, [15]}, as well as densely packed tissues [16]}.
